I’m currently running a 7.1 surround with my Onkyo TX-NR686 receiver. I’ve confirmed that the surrounds work for movies and games, and that the fronts and sub play with standard stereo music. However, I know there’s a way to force a faux 7.1 from a stereo track, I recall the receiver doing it when I was messing with it earlier, I just haven’t found a way to re-enable it. Maybe I’m just going crazy. If it helps, the input signal is an HDMI from my Windows 10 PC.
Any tips would be a huge help!